Working aid



FIG. 1 is a side view of a first embodiment of a working aid incorporating the design of my invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a perspective bottom view thereof; and

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof.

FIG. 7 is a side view of a second embodiment of a working aid incorporating the design of my invention;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a bottom perspective view thereof;

FIG. 11 is a rear view thereof; and,

FIG. 12 is a front view thereof. 

The ornamental design of a working aid, as shown and described. 